Regulations last checked for updates: Nov 22, 2024

Title 40 - Protection of Environment last revised: Nov 20, 2024
All TitlesTitle 40Chapter IPart 60Subpart IIIa - Subpart IIIa—Standards of Performance for Volatile Organic Compound (VOC) Emissions From the Synthetic Organic Chemical Manufacturing Industry (SOCMI) Air Oxidation Unit Processes for Which Construction, Reconstruction, or Modification Commenced After April 25, 2023
View all text of Subpart IIIa [§ 60.610a - § 60.620a]
§ 60.617a - What are the chemicals that I must produce to be affected by subpart IIIa?
Chemical name CAS No.*
Acetaldehyde75-07-0
Acetic acid64-19-7
Acetone67-64-1
Acetonitrile75-05-8
Acetophenone98-86-2
Acrolein107-02-8
Acrylic acid79-10-7
Acrylonitrile107-13-1
Anthraquinone84-65-1
Benzaldehyde100-52-7
Benzoic acid, tech65-85-0
1,3-Butadiene106-99-0
p-t-Butyl benzoic acid98-73-7
N-Butyric acid107-92-6
Crotonic acid3724-65-0
Cumene hydroperoxide80-15-9
Cyclohexanol108-93-0
Cyclohexanone108-94-1
Dimethyl terephthalate120-61-6
Ethylene dichloride107-06-2
Ethylene oxide75-21-8
Formaldehyde50-00-0
Formic acid64-18-6
Glyoxal107-22-2
Hydrogen cyanide74-90-8
Isobutyric acid79-31-2
Isophthalic acid121-91-5
Maleic anhydride108-31-6
Methyl ethyl ketone78-93-3
a-Methyl styrene98-83-9
Phenol108-95-2
Phthalic anhydride85-44-9
Propionic acid79-09-4
Propylene oxide75-56-9
Styrene100-42-5
Terephthalic acid100-21-0

* CAS numbers refer to the Chemical Abstracts Registry numbers assigned to specific chemicals, isomers, or mixtures of chemicals. Some isomers or mixtures that are covered by the standards do not have CAS numbers assigned to them. The standards apply to all of the chemicals listed, whether CAS numbers have been assigned or not.

authority: 42 U.S.C. 7401
source: 36 FR 24877, Dec. 23, 1971, unless otherwise noted.
cite as: 40 CFR 60.617a
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